Device for measuring the velocity of a body in an undersea envir

Details Device for measuring the velocity of a body in an undersea envir Device for measuring the velocity of a body in an undersea envir

1976-10-18

1977-12-27

Farley, Richard A.

Communications: electrical

Selective

Intelligence comparison for controlling

H04B 1100

Patent

active

040657469

ABSTRACT:
A hollow, projectile-shaped body containing an acoustical transducer is rased into the sea such that the body descends in free fall until it strikes and penetrates the sea floor, coming to a rest therein. Acoustic signals emanating from the acoustic transducer are processed utilizing the doppler effect to generate a direct current analog signal which is the function of the velocity of the body from a time immediately preceding the body striking the sea floor surface until the body comes to rest in the sea floor, thereby obtaining an indication of the physical characteristics of the sea floor.

REFERENCES:
patent: 2621243 (1952-12-01), Sunstein
patent: 3602876 (1971-08-01), Gerard

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